Lens driving device, camera module, and camera-equipped portable terminal
US10401589B2 · kind B2 · utility
2Cited by
1References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 8, 2015 |
| Grant date | Sep 3, 2019 |
| Priority date | — |
| Expiry date | Aug 16, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2217/005
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A lens driving device comprising: an autofocus driving unit in which an autofocus movable part is elastically supported by an autofocus fixed part due to an elastic support part; and an auxiliary magnet which, in a reference position of the autofocus movable part, has a movement direction action force of zero relative to the autofocus movable part and which generates the movement direction action force in the opposite direction to a restoring force of the elastic support part when the autofocus movable part has moved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.